NBC12439AMNR4G Overview
As a clock IC, it is packaged by the Tape & Reel (TR) method. The 32-VFQFN Exposed Pad package embeds this Clock PLL. The frequency generator is capable of withstanding a maximum temperature of 260 during reflowing. As you can see, it consists of 32 terminations. Basically, this time clock generator needs a voltage of 3.3V. There is a Clock PLL called Crystal which is designed to be the input to this clock generator. Using 1 circuits, the electronic part's full performance can be accessed. RF synthesizers based on this clock provide frequencies up to 800MHz maximum. A Surface Mount-shaped electrical component makes it convenient to mount on a panel. There should be 3.135V~5.25V provided with this RF synthesizer. As determined by the test statistics, the ambient temperature should be set to -40°C~85°C. In this case, we are dealing with a frequency synthesizer that can be used with PECL logic levels. As far as this electronic part is concerned, it can be classified as a PLL Clock Generator component. Microprocessor-specific clock PLL with 32 bits. The related electronic parts of part number NBC12439A are listed below. There are 32 pins that are available on the clock PLL. RF synthesizers can handle a voltage of 5V as the supply voltage.
NBC12439AMNR4G Features
Available in the 32-VFQFN Exposed Pad
Supply voltage of 3.3V
Operating supply voltage of 5V

NBC12439AMNR4G Applications
There are a lot of ON Semiconductor
NBC12439AMNR4G Clock Generators applications.

Picocells, femtocells and small cells
Sampling clocks for ADC and DAC
1 Gigabit Ethernet
10 Gigabit Ethernet
FPGA and processor clocks
Line cards used in telephone exchange
Fiber Channel
PCI express cards
Infotainment systems
Medical equipment

Factory Lead Time	8 Weeks
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	32-VFQFN Exposed Pad
Number of Pins	32
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Published	2009
JESD-609 Code	e3
Pbfree Code	yes
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	32
ECCN Code	EAR99
Type	PLL Clock Generator
Terminal Finish	Tin (Sn)
Voltage - Supply	3.135V~5.25V
Terminal Position	QUAD
Peak Reflow Temperature (Cel)	260
Supply Voltage	3.3V
Terminal Pitch	0.5mm
Time@Peak Reflow Temperature-Max (s)	40
Base Part Number	NBC12439A
Output	PECL
Pin Count	32
Operating Supply Voltage	5V
Number of Circuits	1
Nominal Supply Current	85mA
Frequency (Max)	800MHz
Halogen Free	Halogen Free
Input	Crystal
Ratio - Input:Output	1:1
Primary Clock/Crystal Frequency-Nom	20MHz
PLL	Yes
Differential - Input:Output	No/Yes
Divider/Multiplier	Yes/No
Length	5mm
Width	5mm
Radiation Hardening	No
RoHS Status	RoHS Compliant
Lead Free	Lead Free